Tungsten copper electrode for butt welding uses resistance heat to weld entire workpiece and has high productivity and is suitable for automation. It can be divided into two types of flash butt welding and resistance butt welding.
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Resistance butt welding: Two workpiece are always pressed, uses resistance heat to the plastic state of heat, and then quickly apply forging pressure (or not to increase the forging pressure to keep the welding pressure) to complete the welding.